- Add release-time conversion helpers - Split GetCurrentReleaseTime() into two simpler functions. - Avoid appending strings when assembling user-agent string. - Reorder release info URLs to check the newer URLs earlier. - Remove trivial low-level functions created solely for the purpose of writing tests. - Remove some unnecessary tests.
432 lines
12 KiB
Go
432 lines
12 KiB
Go
/*
|
||
* Minio Cloud Storage, (C) 2015, 2016, 2017 Minio, Inc.
|
||
*
|
||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||
* you may not use this file except in compliance with the License.
|
||
* You may obtain a copy of the License at
|
||
*
|
||
* http://www.apache.org/licenses/LICENSE-2.0
|
||
*
|
||
* Unless required by applicable law or agreed to in writing, software
|
||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
* See the License for the specific language governing permissions and
|
||
* limitations under the License.
|
||
*/
|
||
|
||
package cmd
|
||
|
||
import (
|
||
"bufio"
|
||
"fmt"
|
||
"io/ioutil"
|
||
"net/http"
|
||
"os"
|
||
"path/filepath"
|
||
"runtime"
|
||
"strings"
|
||
"time"
|
||
|
||
"github.com/fatih/color"
|
||
"github.com/minio/cli"
|
||
)
|
||
|
||
// Check for new software updates.
|
||
var updateCmd = cli.Command{
|
||
Name: "update",
|
||
Usage: "Check for a new software update.",
|
||
Action: mainUpdate,
|
||
Flags: []cli.Flag{
|
||
cli.BoolFlag{
|
||
Name: "quiet",
|
||
Usage: "Disable any update messages.",
|
||
},
|
||
},
|
||
CustomHelpTemplate: `Name:
|
||
{{.HelpName}} - {{.Usage}}
|
||
|
||
USAGE:
|
||
{{.HelpName}}{{if .VisibleFlags}} [FLAGS]{{end}}
|
||
{{if .VisibleFlags}}
|
||
FLAGS:
|
||
{{range .VisibleFlags}}{{.}}
|
||
{{end}}{{end}}
|
||
EXIT STATUS:
|
||
0 - You are already running the most recent version.
|
||
1 - New update is available.
|
||
-1 - Error in getting update information.
|
||
|
||
EXAMPLES:
|
||
1. Check if there is a new update available:
|
||
$ {{.HelpName}}
|
||
`,
|
||
}
|
||
|
||
const (
|
||
minioReleaseTagTimeLayout = "2006-01-02T15-04-05Z"
|
||
minioReleaseURL = "https://dl.minio.io/server/minio/release/" + runtime.GOOS + "-" + runtime.GOARCH + "/"
|
||
)
|
||
|
||
var (
|
||
// Newer official download info URLs appear earlier below.
|
||
minioReleaseInfoURLs = []string{
|
||
minioReleaseURL + "minio.sha256sum",
|
||
minioReleaseURL + "minio.shasum",
|
||
}
|
||
)
|
||
|
||
// minioVersionToReleaseTime - parses a standard official release
|
||
// Minio version string.
|
||
//
|
||
// An official binary's version string is the release time formatted
|
||
// with RFC3339 (in UTC) - e.g. `2017-09-29T19:16:56Z`
|
||
func minioVersionToReleaseTime(version string) (releaseTime time.Time, err error) {
|
||
return time.Parse(time.RFC3339, version)
|
||
}
|
||
|
||
// releaseTimeToReleaseTag - converts a time to a string formatted as
|
||
// an official Minio release tag.
|
||
//
|
||
// An official minio release tag looks like:
|
||
// `RELEASE.2017-09-29T19-16-56Z`
|
||
func releaseTimeToReleaseTag(releaseTime time.Time) string {
|
||
return "RELEASE." + releaseTime.Format(minioReleaseTagTimeLayout)
|
||
}
|
||
|
||
// releaseTagToReleaseTime - reverse of `releaseTimeToReleaseTag()`
|
||
func releaseTagToReleaseTime(releaseTag string) (releaseTime time.Time, err error) {
|
||
tagTimePart := strings.TrimPrefix(releaseTag, "RELEASE.")
|
||
if tagTimePart == releaseTag {
|
||
return releaseTime, fmt.Errorf("%s is not a valid release tag", releaseTag)
|
||
}
|
||
return time.Parse(minioReleaseTagTimeLayout, tagTimePart)
|
||
}
|
||
|
||
// getModTime - get the file modification time of `path`
|
||
func getModTime(path string) (t time.Time, err error) {
|
||
// Convert to absolute path
|
||
absPath, err := filepath.Abs(path)
|
||
if err != nil {
|
||
return t, fmt.Errorf("Unable to get absolute path of %s. %s", path, err)
|
||
}
|
||
|
||
// Get Stat info
|
||
fi, err := osStat(absPath)
|
||
if err != nil {
|
||
return t, fmt.Errorf("Unable to get ModTime of %s. %s", absPath, err)
|
||
}
|
||
|
||
// Return the ModTime
|
||
return fi.ModTime().UTC(), nil
|
||
}
|
||
|
||
// GetCurrentReleaseTime - returns this process's release time. If it
|
||
// is official minio version, parsed version is returned else minio
|
||
// binary's mod time is returned.
|
||
func GetCurrentReleaseTime() (releaseTime time.Time, err error) {
|
||
if releaseTime, err = minioVersionToReleaseTime(Version); err == nil {
|
||
return releaseTime, err
|
||
}
|
||
|
||
// Looks like version is minio non-standard, we use minio
|
||
// binary's ModTime as release time:
|
||
return getModTime(os.Args[0])
|
||
}
|
||
|
||
// IsDocker - returns if the environment minio is running in docker or
|
||
// not. The check is a simple file existence check.
|
||
//
|
||
// https://github.com/moby/moby/blob/master/daemon/initlayer/setup_unix.go#L25
|
||
//
|
||
// "/.dockerenv": "file",
|
||
//
|
||
func IsDocker() bool {
|
||
_, err := osStat("/.dockerenv")
|
||
if os.IsNotExist(err) {
|
||
return false
|
||
}
|
||
|
||
// Log error, as we will not propagate it to caller
|
||
errorIf(err, "Error in docker check.")
|
||
|
||
return err == nil
|
||
}
|
||
|
||
// IsDCOS returns true if minio is running in DCOS.
|
||
func IsDCOS() bool {
|
||
// http://mesos.apache.org/documentation/latest/docker-containerizer/
|
||
// Mesos docker containerizer sets this value
|
||
return os.Getenv("MESOS_CONTAINER_NAME") != ""
|
||
}
|
||
|
||
// IsKubernetes returns true if minio is running in kubernetes.
|
||
func IsKubernetes() bool {
|
||
// Kubernetes env used to validate if we are
|
||
// indeed running inside a kubernetes pod
|
||
// is KUBERNETES_SERVICE_HOST but in future
|
||
// we might need to enhance this.
|
||
return os.Getenv("KUBERNETES_SERVICE_HOST") != ""
|
||
}
|
||
|
||
// Minio Helm chart uses DownwardAPIFile to write pod label info to /podinfo/labels
|
||
// More info: https://kubernetes.io/docs/tasks/inject-data-application/downward-api-volume-expose-pod-information/#store-pod-fields
|
||
// Check if this is Helm package installation and report helm chart version
|
||
func getHelmVersion(helmInfoFilePath string) string {
|
||
// Read the file exists.
|
||
helmInfoFile, err := os.Open(helmInfoFilePath)
|
||
if err != nil {
|
||
// Log errors and return "" as Minio can be deployed
|
||
// without Helm charts as well.
|
||
if !os.IsNotExist(err) {
|
||
errorIf(err, "Unable to read %s", helmInfoFilePath)
|
||
}
|
||
return ""
|
||
}
|
||
|
||
scanner := bufio.NewScanner(helmInfoFile)
|
||
for scanner.Scan() {
|
||
if strings.Contains(scanner.Text(), "chart=") {
|
||
helmChartVersion := strings.TrimPrefix(scanner.Text(), "chart=")
|
||
// remove quotes from the chart version
|
||
return strings.Trim(helmChartVersion, `"`)
|
||
}
|
||
}
|
||
|
||
return ""
|
||
}
|
||
|
||
// IsSourceBuild - returns if this binary is a non-official build from
|
||
// source code.
|
||
func IsSourceBuild() bool {
|
||
_, err := minioVersionToReleaseTime(Version)
|
||
return err != nil
|
||
}
|
||
|
||
// DO NOT CHANGE USER AGENT STYLE.
|
||
// The style should be
|
||
//
|
||
// Minio (<OS>; <ARCH>[; <MODE>][; dcos][; kubernetes][; docker][; source]) Minio/<VERSION> Minio/<RELEASE-TAG> Minio/<COMMIT-ID> [Minio/universe-<PACKAGE-NAME>] [Minio/helm-<HELM-VERSION>]
|
||
//
|
||
// Any change here should be discussed by opening an issue at
|
||
// https://github.com/minio/minio/issues.
|
||
func getUserAgent(mode string) string {
|
||
|
||
userAgentParts := []string{}
|
||
// Helper function to concisely append a pair of strings to a
|
||
// the user-agent slice.
|
||
uaAppend := func(p, q string) {
|
||
userAgentParts = append(userAgentParts, p, q)
|
||
}
|
||
|
||
uaAppend("Minio (", runtime.GOOS)
|
||
uaAppend("; ", runtime.GOARCH)
|
||
if mode != "" {
|
||
uaAppend("; ", mode)
|
||
}
|
||
if IsDCOS() {
|
||
uaAppend("; ", "dcos")
|
||
}
|
||
if IsKubernetes() {
|
||
uaAppend("; ", "kubernetes")
|
||
}
|
||
if IsDocker() {
|
||
uaAppend("; ", "docker")
|
||
}
|
||
if IsSourceBuild() {
|
||
uaAppend("; ", "source")
|
||
}
|
||
|
||
uaAppend(") Minio/", Version)
|
||
uaAppend(" Minio/", ReleaseTag)
|
||
uaAppend(" Minio/", CommitID)
|
||
if IsDCOS() {
|
||
universePkgVersion := os.Getenv("MARATHON_APP_LABEL_DCOS_PACKAGE_VERSION")
|
||
// On DC/OS environment try to the get universe package version.
|
||
if universePkgVersion != "" {
|
||
uaAppend(" Minio/universe-", universePkgVersion)
|
||
}
|
||
}
|
||
|
||
if IsKubernetes() {
|
||
// In Kubernetes environment, try to fetch the helm package version
|
||
helmChartVersion := getHelmVersion("/podinfo/labels")
|
||
if helmChartVersion != "" {
|
||
uaAppend(" Minio/helm-", helmChartVersion)
|
||
}
|
||
}
|
||
|
||
return strings.Join(userAgentParts, "")
|
||
}
|
||
|
||
func downloadReleaseURL(releaseChecksumURL string, timeout time.Duration, mode string) (content string, err error) {
|
||
req, err := http.NewRequest("GET", releaseChecksumURL, nil)
|
||
if err != nil {
|
||
return content, err
|
||
}
|
||
req.Header.Set("User-Agent", getUserAgent(mode))
|
||
|
||
client := &http.Client{
|
||
Timeout: timeout,
|
||
Transport: &http.Transport{
|
||
// need to close connection after usage.
|
||
DisableKeepAlives: true,
|
||
},
|
||
}
|
||
|
||
resp, err := client.Do(req)
|
||
if err != nil {
|
||
return content, err
|
||
}
|
||
if resp == nil {
|
||
return content, fmt.Errorf("No response from server to download URL %s", releaseChecksumURL)
|
||
}
|
||
defer resp.Body.Close()
|
||
|
||
if resp.StatusCode != http.StatusOK {
|
||
return content, fmt.Errorf("Error downloading URL %s. Response: %v", releaseChecksumURL, resp.Status)
|
||
}
|
||
contentBytes, err := ioutil.ReadAll(resp.Body)
|
||
if err != nil {
|
||
return content, fmt.Errorf("Error reading response. %s", err)
|
||
}
|
||
|
||
return string(contentBytes), err
|
||
}
|
||
|
||
// DownloadReleaseData - downloads release data from minio official server.
|
||
func DownloadReleaseData(timeout time.Duration, mode string) (data string, err error) {
|
||
for _, url := range minioReleaseInfoURLs {
|
||
data, err = downloadReleaseURL(url, timeout, mode)
|
||
if err == nil {
|
||
return data, err
|
||
}
|
||
}
|
||
return data, fmt.Errorf("Failed to fetch release URL - last error: %s", err)
|
||
}
|
||
|
||
// parseReleaseData - parses release info file content fetched from
|
||
// official minio download server.
|
||
//
|
||
// The expected format is a single line with two words like:
|
||
//
|
||
// fbe246edbd382902db9a4035df7dce8cb441357d minio.RELEASE.2016-10-07T01-16-39Z
|
||
//
|
||
// The second word must be `minio.` appended to a standard release tag.
|
||
func parseReleaseData(data string) (releaseTime time.Time, err error) {
|
||
fields := strings.Fields(data)
|
||
if len(fields) != 2 {
|
||
err = fmt.Errorf("Unknown release data `%s`", data)
|
||
return releaseTime, err
|
||
}
|
||
|
||
releaseInfo := fields[1]
|
||
|
||
fields = strings.SplitN(releaseInfo, ".", 2)
|
||
if len(fields) != 2 {
|
||
err = fmt.Errorf("Unknown release information `%s`", releaseInfo)
|
||
return releaseTime, err
|
||
}
|
||
if fields[0] != "minio" {
|
||
err = fmt.Errorf("Unknown release `%s`", releaseInfo)
|
||
return releaseTime, err
|
||
}
|
||
|
||
releaseTime, err = releaseTagToReleaseTime(fields[1])
|
||
if err != nil {
|
||
err = fmt.Errorf("Unknown release tag format. %s", err)
|
||
}
|
||
|
||
return releaseTime, err
|
||
}
|
||
|
||
func getLatestReleaseTime(timeout time.Duration, mode string) (releaseTime time.Time, err error) {
|
||
data, err := DownloadReleaseData(timeout, mode)
|
||
if err != nil {
|
||
return releaseTime, err
|
||
}
|
||
|
||
return parseReleaseData(data)
|
||
}
|
||
|
||
const (
|
||
// Kubernetes deployment doc link.
|
||
kubernetesDeploymentDoc = "https://docs.minio.io/docs/deploy-minio-on-kubernetes"
|
||
|
||
// Mesos deployment doc link.
|
||
mesosDeploymentDoc = "https://docs.minio.io/docs/deploy-minio-on-dc-os"
|
||
)
|
||
|
||
func getDownloadURL(releaseTag string) (downloadURL string) {
|
||
// Check if we are in DCOS environment, return
|
||
// deployment guide for update procedures.
|
||
if IsDCOS() {
|
||
return mesosDeploymentDoc
|
||
}
|
||
|
||
// Check if we are in kubernetes environment, return
|
||
// deployment guide for update procedures.
|
||
if IsKubernetes() {
|
||
return kubernetesDeploymentDoc
|
||
}
|
||
|
||
// Check if we are docker environment, return docker update command
|
||
if IsDocker() {
|
||
// Construct release tag name.
|
||
return fmt.Sprintf("docker pull minio/minio:%s", releaseTag)
|
||
}
|
||
|
||
// For binary only installations, we return link to the latest binary.
|
||
if runtime.GOOS == "windows" {
|
||
return minioReleaseURL + "minio.exe"
|
||
}
|
||
|
||
return minioReleaseURL + "minio"
|
||
}
|
||
|
||
func getUpdateInfo(timeout time.Duration, mode string) (older time.Duration, downloadURL string, err error) {
|
||
var currentReleaseTime, latestReleaseTime time.Time
|
||
currentReleaseTime, err = GetCurrentReleaseTime()
|
||
if err != nil {
|
||
return older, downloadURL, err
|
||
}
|
||
|
||
latestReleaseTime, err = getLatestReleaseTime(timeout, mode)
|
||
if err != nil {
|
||
return older, downloadURL, err
|
||
}
|
||
|
||
if latestReleaseTime.After(currentReleaseTime) {
|
||
older = latestReleaseTime.Sub(currentReleaseTime)
|
||
downloadURL = getDownloadURL(releaseTimeToReleaseTag(latestReleaseTime))
|
||
}
|
||
|
||
return older, downloadURL, nil
|
||
}
|
||
|
||
func mainUpdate(ctx *cli.Context) {
|
||
if len(ctx.Args()) != 0 {
|
||
cli.ShowCommandHelpAndExit(ctx, "update", -1)
|
||
}
|
||
|
||
quiet := ctx.Bool("quiet") || ctx.GlobalBool("quiet")
|
||
if quiet {
|
||
log.EnableQuiet()
|
||
}
|
||
|
||
minioMode := ""
|
||
older, downloadURL, err := getUpdateInfo(10*time.Second, minioMode)
|
||
if err != nil {
|
||
log.Println(err)
|
||
os.Exit(-1)
|
||
}
|
||
|
||
if updateMsg := computeUpdateMessage(downloadURL, older); updateMsg != "" {
|
||
log.Println(updateMsg)
|
||
os.Exit(1)
|
||
}
|
||
|
||
colorSprintf := color.New(color.FgGreen, color.Bold).SprintfFunc()
|
||
log.Println(colorSprintf("You are already running the most recent version of ‘minio’."))
|
||
os.Exit(0)
|
||
}
|